d12p1; p2 ... well, I hate Eric.

day03.py

@@ -1,5 +1,5 @@
 from aoc import AOCDay
-from coordinate import Coordinate
+from coordinate import Coordinate, DistanceAlgorithm
 from math import inf
 from typing import Any, Dict, List
 
@@ -45,7 +45,7 @@ class Day(AOCDay):
             if x not in s[1]:
                 continue
 
-            mDist = Coordinate(*x).getDistanceTo(Coordinate(0, 0), mode=0)
+            mDist = Coordinate(*x).getDistanceTo(Coordinate(0, 0), mode=DistanceAlgorithm.MANHATTAN)
             if mDist < minDist:
                 minDist = mDist
 

day04.py

@@ -7,7 +7,7 @@ class Day(AOCDay):
     test_solutions_p2 = []
 
     def part1(self) -> Any:
-        low, hi = map(int, self.input[0].split("-"))
+        low, hi = self.getInputAsArraySplit("-", int)
         count = 0
         for x in range(low, hi + 1):
             d0 = x // 100_000
@@ -24,7 +24,7 @@ class Day(AOCDay):
         return count
 
     def part2(self) -> Any:
-        low, hi = map(int, self.input[0].split("-"))
+        low, hi = self.getInputAsArraySplit("-", int)
         count = 0
         for x in range(low, hi + 1):
             d0 = x // 100_000

day08.py

@@ -7,7 +7,7 @@ class Day(AOCDay):
     test_solutions_p2 = []
 
     def part1(self) -> Any:
-        img_string = self.input[0]
+        img_string = self.getInput()
         img_width = 25
         img_height = 6
         layers = []
@@ -35,7 +35,7 @@ class Day(AOCDay):
         return one_count * two_count
 
     def part2(self) -> Any:
-        img_string = self.input[0]
+        img_string = self.getInput()
         img_width = 25
         img_height = 6
         layers = []

day10.py

@@ -37,7 +37,7 @@ class Day(AOCDay):
 
     def part1(self) -> Any:
         grid = Grid()
-        for y, l in enumerate(self.input):
+        for y, l in enumerate(self.getInput()):
             for x, c in enumerate(l):
                 grid.set(Coordinate(x, y), c == '#')
 
@@ -45,7 +45,7 @@ class Day(AOCDay):
 
     def part2(self) -> Any:
         grid = Grid()
-        for y, l in enumerate(self.input):
+        for y, l in enumerate(self.getInput()):
             for x, c in enumerate(l):
                 grid.set(Coordinate(x, y), c == '#')
 

day12.py

@@ -0,0 +1,74 @@
+from aoc import AOCDay
+from math import lcm
+from re import compile, findall
+from tools import compare
+from typing import Any, List
+
+scanline_regex = compile(r"^<x=(.*), y=(.*), z=(.*)>$")
+
+
+class Moon:
+    x: int
+    y: int
+    z: int
+    vel_x: int = 0
+    vel_y: int = 0
+    vel_z: int = 0
+
+    def __init__(self, x: int, y: int, z: int):
+        self.x = x
+        self.y = y
+        self.z = z
+
+    def getEnergy(self):
+        potential = abs(self.x) + abs(self.y) + abs(self.z)
+        kinetic = abs(self.vel_x) + abs(self.vel_y) + abs(self.vel_z)
+        return potential * kinetic
+
+
+def moveMoons(moons: List[Moon]):
+    for i, moon in enumerate(moons):
+        for t in range(len(moons)):
+            if i == t:
+                continue
+
+            moon.vel_x += compare(moon.x, moons[t].x)
+            moon.vel_y += compare(moon.y, moons[t].y)
+            moon.vel_z += compare(moon.z, moons[t].z)
+
+    for moon in moons:
+        moon.x += moon.vel_x
+        moon.y += moon.vel_y
+        moon.z += moon.vel_z
+
+
+class Day(AOCDay):
+    test_solutions_p1 = [183, 14645]
+    test_solutions_p2 = [2772, 4686774924]
+
+    def part1(self) -> Any:
+        moons = [Moon(*map(int, findall(scanline_regex, line)[0])) for line in self.getInput()]
+
+        for step in range(1000):
+            moveMoons(moons)
+
+        return sum([x.getEnergy() for x in moons])
+
+    def part2(self) -> Any:
+        moons = [Moon(*map(int, findall(scanline_regex, line)[0])) for line in self.getInput()]
+
+        init_moons = moons.copy()
+        vel_0_pos = [0, 0, 0, 0]
+        moveCounter = 0
+        #while 0 in vel_0_pos:
+        for bla in range(3000):
+            moveCounter += 1
+            moveMoons(moons)
+            for i, m in enumerate(moons):
+                if m.x == init_moons[i].x and m.y == init_moons[i].y and m.z == init_moons[i].z and m.vel_x == 0 and m.vel_y == 0 and m.vel_z == 0:
+                    print(i, moveCounter)
+                if (vel_0_pos[i] == 0 or vel_0_pos[i] > moveCounter - vel_0_pos[i]) and m.vel_x == 0 and m.vel_y == 0 and m.vel_z == 0:
+                    vel_0_pos[i] = moveCounter - vel_0_pos[i]
+
+        print(vel_0_pos)
+        return lcm(*vel_0_pos)

inputs/input12

@@ -0,0 +1,4 @@
+<x=-9, y=-1, z=-1>
+<x=2, y=9, z=5>
+<x=10, y=18, z=-12>
+<x=-6, y=15, z=-7>

inputs/test_input12_1_0

@@ -0,0 +1,4 @@
+<x=-1, y=0, z=2>
+<x=2, y=-10, z=-7>
+<x=4, y=-8, z=8>
+<x=3, y=5, z=-1>

inputs/test_input12_1_1

@@ -0,0 +1,4 @@
+<x=-8, y=-10, z=0>
+<x=5, y=5, z=10>
+<x=2, y=-7, z=3>
+<x=9, y=-8, z=-3>

inputs/test_input12_2_0

@@ -0,0 +1,4 @@
+<x=-1, y=0, z=2>
+<x=2, y=-10, z=-7>
+<x=4, y=-8, z=8>
+<x=3, y=5, z=-1>

inputs/test_input12_2_1

@@ -0,0 +1,4 @@
+<x=-8, y=-10, z=0>
+<x=5, y=5, z=10>
+<x=2, y=-7, z=3>
+<x=9, y=-8, z=-3>